Great simplification pulsing lines

Ep 119  |  Luther Krueger

Luther Krueger: “Goldilocks Tech? A Solar Oven Overview”

Check out this podcast

TGS119 Luther Krueger The Great Simplification

Show Summary

On this episode, Nate is joined by Solar Oven collector and educator Luther Krueger to discuss the ins and outs of solar cooking. In the western world, most of us are used to indoor, gas or electric stoves, typically powered by fossil fuels, and in a third of the world, people are still using solid fuels – wood, coal, or dung – which come with many health and environmental risks. Solar ovens are an alternative which makes use of passive solar energy at a range of temperatures and can be made from basic or reused materials. What would it take on a cultural and economic level for more people to adopt these low-tech solutions? How can solar cooker designs vary to match the needs of the individual and community in varying environmental conditions? Could we take inspiration from this example of Goldilocks Technology for other areas of our lives in a slower, lower-energy throughput future?

About Luther Krueger

Since 2004 Luther Krueger has been collecting unique classic and contemporary solar cookers and promoting solar cooking as the means to halt deforestation, clean unsafe drinking water in remote areas of developing countries, and reducing any community’s dependence on fossil fuel. Krueger’s unincorporated, volunteer-run Big Blue Sun Museum of Solar Cooking aims to preserve the history of solar cooking while promoting the practice through the video series on the Museum’s youtube channel and as contributing moderator to the Solar Cookers World Network on social media and by promoting solar cooking at regional events. Krueger is a Senior Community Faculty member at Metropolitan State University where he teaches the Capstone course for the Master of Public and Nonprofit Administration degree program. Krueger retired from the Minneapolis Police Department in 2023 after twenty-eight years as a civilian community liaison and crime analyst, where he developed and launched several community policing initiatives.

In French, we have a motto that says that a simple drawing is often better than a long explanation. Jean-Marc Jancovici Carbone 4 President

That’s very understandable because with left atmosphere thinking, one of the problems is that you see everything as a series of problems that must have solutions. Iain McGilchrist Neuroscientist and Philosopher

We can’t have hundreds and hundreds of real relationships that are healthy because that requires time and effort and full attention and awareness of being in real relationship and conversation with the other human. Nate Hagens Director of ISEOF

This is the crux of the whole problem. Individual parts of nature are more valuable than the biocomplexity of nature. Thomas Crowther Founder Restor

Show Notes & Links to Learn More

Download transcript
Back to episodes
Why Science Communication FailsWith Mark Medish & Chuck WatsonThe Great SimplificationEp 21 | Mark Medish & Chuck Watson

In this Reality Roundtable, Nate is joined by geopolitical risk experts Mark Medish and Chuck Watson to discuss the increasing strain being placed on human governance as a result of escalating conflicts between nations and state leaders.

Watch nowJan 21, 2026
Why the West Can't Defend ItselfWith Craig TindaleThe Great SimplificationEp 207 | Craig Tindale

For decades, the West has outsourced its own material production to other countries, in favor of lower costs and short-term returns over more expensive, long-duration investments like mining and manufacturing. But while this has seemed like a success on the surface, it has left us with a society based on consumption, unable to produce what we need on our own. What are the deeper costs of this long-term offshoring – including for our geopolitical, climate, and technological ambitions? 

Watch nowJan 14, 2026
How We've 'Drugified' Our Entire ExistenceWith Anna LembkeThe Great SimplificationEp 206 | Anna Lembke

Dopamine: the most famous neurotransmitter that regulates pleasure, motivation, and (perhaps most importantly) addiction. When examining  why our society is hooked on consuming more and more of everything – food, clothes, videos, news, vacations – it’s imperative to look at how our modern environments hijack our brain’s dopamine, sending it into overdrive at nearly every turn. Could taking a closer look at how our societal norms make us more vulnerable to addiction help us transition to more balanced and mindful lifestyles?

Watch nowJan 7, 2026

Subscribe to our Substack

The Institute for the Study of Energy and Our Future (ISEOF) is a 501(c)(3) non-profit corporation, founded in 2008, that conducts research and educates the public about energy issues and their impact on society.

Support our work
Get in touch
x